<template>
  <div>
    <!--面包屑导航区-->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!--卡片视图区-->
    <el-card class="box-card">
      <!--搜索框-->
      <el-row :gutter="20">
        <el-col :span="7">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUserList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>

      <!--用户列表区-->
      <el-table :data="userList" border stripe>
        <el-table-column label="#" type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <!--作用域插槽,定位每一行都有不同的布尔值-->
          <template slot-scope="scope">
            <!--开关组件--双向绑定布尔值-->
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStateChange(scope.row)"
            ></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <!-- 修改按钮-->
            <el-tooltip
              effect="dark"
              content="修改用户"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="primary"
                icon="el-icon-edit"
                size="mini"
                @click="showEditDialog(scope.row.id)"
              ></el-button>
            </el-tooltip>
            <!-- 删除按钮-->
            <el-tooltip
              effect="dark"
              content="删除用户"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="danger"
                icon="el-icon-delete"
                size="mini"
                @click="removeUserByID(scope.row)"
              ></el-button>
            </el-tooltip>
            <!-- 分配角色按钮 -->
            <el-tooltip
              effect="dark"
              content="分配角色"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                @click="setRole(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!--分页条-->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      ></el-pagination>
    </el-card>

    <!---添加用户的对话框-->
    <el-dialog
      @close="addDialogClosed"
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="30%"
    >
      <!--内容读取区-->
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="电话" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!--底部区域-->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!--修改用户的对话框-->
    <el-dialog
      title="修改用户"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="editDialogClosed"
    >
      <!--内容读取区-->
      <el-form
        :model="editForm"
        :rules="editFormRules"
        ref="editFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="电话" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUser">确 定</el-button>
      </span>
    </el-dialog>

    <!--分配角色的对话框-->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoledialogVisible"
      width="50%"
      @close="setRoledialogClosed"
    >
      <div>
        <p>当前的用户：{{ userInfo.username }}</p>
        <p>当前的角色：{{ userInfo.role_name }}</p>
        <p>
          分配新角色：
          <el-select v-model="selectRoleId" placeholder="请选择">
            <el-option
              v-for="item in rolesList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id"
            >
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoledialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  name: 'Users',
  data() {
    // 定义校验规则
    var checkEmail = (rule, value, callback) => {
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
      if (regEmail.test(value)) {
        return callback()
      }
      callback(new Error('请输入合法有效的邮箱'))
    }
    var checkMobile = (rule, value, callback) => {
      const regMobile =
        /^(0|86|17951)?(13[0-9]|15[0123456789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      if (regMobile.test(value)) {
        return callback()
      }
      callback(new Error('请输入合法有效的号码'))
    }
    return {
      // 获取用户列表的参数对象
      queryInfo: {
        query: '', // 查询参数
        pagenum: 1, // 当前页码
        pagesize: 2, // 每页显示条数
      },
      // 保存用户列表数据
      userList: [],
      total: 0, // 总数据条数
      addDialogVisible: false, // 控制对话框的显示与隐藏
      editDialogVisible: false,
      // 用户查询到的数据对象
      editForm: {},
      // 添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: '',
      },
      // 添加用户表单的验证规则
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          {
            min: 3,
            max: 10,
            message: '长度在 3 到 10 个字符',
            trigger: 'blur',
          },
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          {
            min: 6,
            max: 15,
            message: '长度在 6 到 15 个字符',
            trigger: 'blur',
          },
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' },
        ],
        mobile: [
          { required: true, message: '请输入电话', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' },
        ],
      },
      editFormRules: {
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' },
        ],
        mobile: [
          { required: true, message: '请输入电话', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' },
        ],
      },
      // 控制分配角色对话框的显示与隐藏
      setRoledialogVisible: false,
      userInfo: {}, // 需要被分配角色的用户信息
      rolesList: [], // 所有角色的数据列表
      selectRoleId: '', // 已选中的角色ID值
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    async getUserList() {
      // 返回Promise函数对象
      const { data: res } = await this.$http.get('users', {
        params: this.queryInfo,
      })
      if (res.meta.status !== 200)
        return this.$message.error('获取用户列表失败')
      this.userList = res.data.users
      this.total = res.data.total
    },
    // 监听 pagesize改变的事件
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      // 重新发送请求获取数据
      this.getUserList()
    },
    // 监听 页码值改变的事件
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听switch开关状态的改变
    async userStateChange(userInfo) {
      const { data: res } = await this.$http.put(
        `users/${userInfo.id}/state/${userInfo.mg_state}`
      )
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state
        return this.$message.error('用户状态修改失败')
      }
      this.$message.success('用户状态修改成功')
    },
    // 监听添加对话框的关闭事件
    addDialogClosed() {
      this.$refs.addFormRef.resetFields()
    },
    // 添加之前对表单进行预校验
    addUser() {
      this.$refs.addFormRef.validate(async (valid) => {
        console.log(valid)
        if (!valid) return
        // 发送添加用户的请求
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status != 201) {
          this.$message.error('添加用户失败')
        }
        this.$message.success('添加用户成功')
        // 关闭对话框
        this.addDialogVisible = false
        // 刷新用户列表
        this.getUserList()
      })
    },
    // 展示编辑用户的对话框
    async showEditDialog(id) {
      // 展示对话框
      this.editDialogVisible = true
      // 通过id获取用户信息
      const { data: res } = await this.$http.get(`users/${id}`)
      if (res.meta.status !== 200)
        return this.$message.error('获取用户信息失败')
      this.editForm = res.data
    },
    // 监听修改对话框的关闭事件
    editDialogClosed() {
      this.$refs.editFormRef.resetFields()
    },
    // 修改之前对表单进行预校验
    editUser() {
      this.$refs.editFormRef.validate(async (valid) => {
        if (!valid) return
        // 发送修改用户的请求
        const { data: res } = await this.$http.put(
          `users/${this.editForm.id}`,
          {
            email: this.editForm.email,
            mobile: this.editForm.mobile,
          }
        )
        console.log(res)
        if (res.meta.status != 200) {
          this.$message.error('编辑用户失败')
        }
        this.$message.success('编辑用户成功')
        // 关闭对话框
        this.editDialogVisible = false
        // 刷新用户列表
        this.getUserList()
      })
    },
    // 根据id删除用户
    async removeUserByID(userInfo) {
      // 弹窗提示是否删除数据
      const confirmResult = await this.$confirm(
        `是否删除用户${userInfo.username}？`,
        '确认信息',
        {
          confirmButtonText: '删除',
          cancelButtonText: '取消',
          type: 'warning',
        }
      ).catch((err) => {
        return err
      })
      // 用户确认返回字符串confirm
      // 用户取消返回字符串cancel
      if (confirmResult !== 'confirm') {
        return this.$message.info('已取消删除')
      }
      // 发送请求删除用户
      const { data: res } = await this.$http.delete(`users/${userInfo.id}`)
      if (res.meta.status !== 200) return this.$message.error('删除失败')
      this.$message.success('删除用户成功')
      // 重新获取用户信息
      this.getUserList()
    },
    // 分配角色的事件
    async setRole(userInfo) {
      this.userInfo = userInfo
      // 在展示对话框之前，获取所有角色的列表
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败')
      }
      this.rolesList = res.data
      this.setRoledialogVisible = true
    },
    // 点击按钮分配角色
    async saveRoleInfo() {
      if (!this.selectRoleId) {
        return this.$message.error('请选择分配的角色')
      }
      // 发送请求
      const { data: res } = await this.$http.put(
        `users/${this.userInfo.id}/role`,
        { rid: this.selectRoleId }
      )
      if (res.meta.status !== 200) {
        return this.$message.error('更新角色失败')
      }
      this.$message.success('更新角色成功')
      this.getUserList()
      this.setRoledialogVisible = false
    },
    // 监听分配角色对话框的事件
    setRoledialogClosed(){
      this.selectRoleId = ''
      this.userInfo = {}
    }
  },
}
</script>

<style lang="less" scoped>
</style>
